<template>
  <div class="todo-container">
    <div class="todo-wrap">
      <Header :addTodo="addTodo"></Header>
      <List 
        :todoList="todoList"
        :updateOne="updateOne"
        :deleteOne="deleteOne"
        />
      <Footer 
        :todoList="todoList"
        :changeAllDone="changeAllDone"
        :removeAllDone="removeAllDone"
      ></Footer>
    </div>
  </div>
</template>

<script>
import Header from '@/components/Header';
import Footer from '@/components/Footer';
import List from '@/components/List'
export default {
  name: "App",
  components: {
    Header,
    List,
    Footer
  },
  data(){
    return({
      todoList:[
        {id:"001",done:false,content:"电视剧"},
        {id:"002",done:false,content:"电影"},
        {id:"003",done:false,content:"动漫"}
      ]
    })
  },
  mounted(){
    this.todoList = JSON.parse(localStorage.getItem("todoList") || "[]")
  },
  methods:{
    addTodo(newTodo){
      this.todoList.unshift(newTodo)
    },
    updateOne(id) {
      this.todoList.forEach((item)=> {
            if(item.id === id){
                item.done = !item.done
            }
      })
    },
    deleteOne(id){
      this.todoList = this.todoList.filter((item) => {
        return item.id !== id
      })
    },
    changeAllDone(newVal) {
      this.todoList = this.todoList.map((item) => {
        item.done = newVal
        return item
      })
    },
    removeAllDone(){
      this.todoList = this.todoList.filter((item)=> {
        return !item.done
      })
    }
  },
  watch:{
    todoList:{
      deep:true,
      handler(){
        localStorage.setItem("todoList",JSON.stringify(this.todoList))
      }
    }
  }
};
</script>

<style>
  /*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}


/*app*/
.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}






</style>
